RCA TRANSISTOR MANUAL TRANSISTOR Germanium p-n-p type used 2N219 primarily in converter and mixer- oscillator applications in AM battery- operated portable radio receivers and automobile radio receivers operating from either a 6-volt or a 12-volt sup- ply. JEDEC No. TO-1 package; outline 4, Outlines Section. This type is elec- trically identical with type 2N140. TRANSISTOR Germanium p-n-p low-noise type 2 N 220 used in low-level preamplifier or input stages of audio-frequency amplifiers. JEDEC No. TO-1 package; outline 4, Outlines Section. This type is elec- trically identical with type 2N175. TRANSISTOR Germanium p-n-p type used in radio- frequency and intermediate-frequency ampli- fier, converter, and mixer-oscillator applications. 2 N 2 4 7 Maximum ratings: collector-to-base volts, 35; eollector ma, -~-10; transistor dissipgtion, 80 milliwatts; ambient temperature range (operat- ing), 65 to 71C, JEDEC No. TO-7 package; outline 7, Outlines Section. This is a DIS- CONTINUED type listed for reference only; it can be replaced by type 2N274. TRANSISTOR Germanium p-n-p type used in medium-speed switching applications 2 N 2 69 in data-processing equipment. JEDEC 4 No. TO-1 package; outline 4, Outlines Section. This type is electrically iden- tical with type 2N404 except for the following items: MAXIMUM RATINGS TRANSITOR DISSIPATION: At ambient temperatures up tO 25C. Loc ccc cece cece eee eee At ambient temperature of 55C... eee eee eee ee At ambient temperature of 71C... 6. cic cece eee eens AMBIENT-TEMPERATURE RANGE! Operating and storage... cee ee eee eee ee ee ene ee eens bene eweeee TRANSISTOR Germanium p-n-p type used in 2 N 270 large-signal audio-frequency amplifier applications. It is used in single-ended or double-ended output stages, in high- rain class A driver stages of radio re- ceivers and audio amplifiers, and in ) E BIS c 28 V}2 120 max mw 35 max mw 10 max mw 65 to 85 C 341) O@) @) E 8 G class B push-pull audio-amplifier service. This type is also used in battery-operated 134